Paul M.

Premise: The reflector if a satellite dish is in the shape of a parabola with a diameter of 4 feet and a depth of 2 feet. To get the maximum reception we need to replace the antenna at the focus.... more

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Algebra 2

08/18/20

You stand at a cliff that is 57 feet above a river. If you drop a rock and the rock falls according to the model h(t)= ho - 16t^2, how long will it take the rock to reach the river?

ho is the starting height

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Geometry

08/17/20

The number of ways that 4 balls tennis balls can be chose an from a basket of 50

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Algebra 2 Probability

08/14/20

Probability of heart defect

kim has a 30% chance of having a child born w a heart defect for every pregnancy she has. She has always wanted to have 2 children. Using the random variable x, find the probability distribution of... more

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Calculus

08/10/20

A circle's radius is increasing at 0.1 feet/minute. How rapidly is its area increasing when the radius is 3 feet?

A circle's radius is increasing at 0.1 feet/minute. How rapidly is its area increasing when the radius is 3 feet?I followed this website's steps on how to solve this problem using the numbers given... more

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Calculus Precalculus

08/05/20

Need help for solving for the triangle

Use the Law of Sines to find the indicated angle θ. (Assume c = 27. Round your answer to the nearest degree.)θ = °

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Calculus Precalculus

08/05/20

Not good at triangle problems

Use the Law of Sines to find the indicated side x. (Assume c = 29.7. Round your answer to one decimal place.)x =

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Trigonometry Algebra Trig

08/03/20

Sam is framing a closet under a stairway. The stairway is 18 ft 6 in. long, and its angle of elevation is 40°. Find the depth of the closet to the nearest inch.

Sam is framing a closet under a stairway. The stairway is 18 ft 6 in. long, and its angle of elevation is 40°. Find the depth of the closet to the nearest inch.The depth of the closet is ______... more

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Trigonometry Algebra Trig

08/03/20

What is the angle of depression from the plane to the building?

An aerial photographer who photographs real estate properties has determined that the best photo is taken at a height of approximately 461 ft and a distance of 802 ft from the building. What is... more

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Trigonometry Algebra Trig

08/03/20

A telephone pole is 60 feet tall. A guy wire 78 feet long is attached from the ground to the top of the pole. Find the angle between the wire and the pole to the nearest degree.

A telephone pole, is 60 feet tall. A guy wire 78 feet long is attached from the ground to the top of the pole. Find the angle between the wire and the pole to the nearest degree.The angle between... more

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Trigonometry

08/01/20

What are all solutions for θ

Find all solutions in the interval 0° ≤ θ < 360°. If rounding is necessary, round to the nearest tenth of a degree. (Enter your answers as a comma-separated list.)tan θ − 2 cos θ tan θ = 0

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Algebra

07/31/20

What is the probability of 3 real roots for a cubic equation?

Several weeks ago a problem appeared here regarding the probability that a specified cubic equation would have 3 real roots when the coefficients were regarded as random variables. This is a... more

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Math Algebra 1 Algebra 2

07/29/20

Sequences and Series

1. What would the dimensions be for n=3?2. Draw the shape for n=4. Insert your drawing below.3. Write a rule for the sequence, with n for the input and the number of cubes for the output.4.... more

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Algebra 2

07/27/20

I need help with these 2 questions

1) A wheelchair ramp must form an angle no greater than 4.8 degrees with the ground. If a 1.8 foot high ramp is needed, what is the minimum horizontal length for the ramp so it satisfies the angle... more

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Calculus

07/26/20

Find the area of the region under the graph of the function f

on the interval [5, 7].f(x)= 2/x2

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Trigonometry

07/26/20

Find the height of the building across the street

A woman entering an outside glass elevator on the ground floor of a hotel glances up to the top of the building across the street and notices that the angle of elevation is 49°. She rides the... more

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Trigonometry

07/25/20

Find all solutions to the equation. 2sin^2(x)+cosx=1 Write your answer in radians in terms of pi , and use the "or" button as necessary

Find all solutions to the equation.2sin2x+cosx=1 Write your answer in radians in terms of , and use the "or" button as necessary.

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Math Algebra 1 Algebra 2

07/24/20

Exponential Function

Find the exponential equation whose graph passes through the points (-1,3/5 )and (2,75 )y=

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Calculus Functions Long Run behavior

07/24/20

Determine the long-run behavior of the function: y= (7^t+4)/(4^t+6)

y --> infinity as t --> infinityy --> _____ as t--> -infinity

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Algebra 1 Algebra 2 Algebra

07/24/20

you spent the same ratio of your worth on an election as Perot did, how much money would you have spent?

It was reported that Ross Perot spent approximately $40 million of his own money in the 1992 presidential campaign. His total worth was reported to be approximately $4 billion. If your total worth... more

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Calculus

07/21/20

Evaluate each integral

∫ sec^2(2𝜃) 𝑑𝜃 Evaluate each integral

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The pool balls are randomly chosen from a set of numbers from 1 to 15 what is the probability that the pool bars chosen a number 5, 7 and 9

The pool balls are randomly chosen from a set of numbers from 1 to 15 what is the probability that the pool bars chosen a number 5, 7 and 9

The pool balls are randomly chosen from a set of numbers from 1 to 15 what is the probability that the pool bars chosen a number 5, 7 and 9

LSuppose your school requires you to choose for books to read on summer vacation from reading list of 12 books how many different ways to choose the books are possible?